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Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!msuinfo!agate!howland.reston.ans.net!noc.near.net!news.delphi.com!usenet From: John Dyson <dysonj@delphi.com> Newsgroups: comp.os.386bsd.questions Subject: Re: How to get better SCSI performance? [FreeBSD 1.1R/AHA1542Cf] Date: Sat, 18 Jun 94 11:11:45 -0500 Organization: Delphi (info@delphi.com email, 800-695-4005 voice) Lines: 17 Message-ID: <Z2zQYYR.dysonj@delphi.com> References: <CrKBr2.8oJ@mozo.cc.purdue.edu> NNTP-Posting-Host: bos1b.delphi.com X-To: Ben Jackson <bj@staff.cc.purdue.edu> Ben Jackson <bj@staff.cc.purdue.edu> writes: >I'm getting pretty poor (IMHO) disk performance. Iozone output shows >that by far most of my transfers are 650K/s (reading AND writing, which >suggests that I'm losing out on my reading speed). Make your filesystems with: newfs -d 0 -a 4 -n 1 sdXY Then you will get great read perf -- and write perf about 1/2 read perf. FreeBSD V1.1.5 (coming out very soon) and easily upgradable from the CDROM will give high read and write perf. We have had the clustering support working in our current for about 2-3 mos now... John dyson@implode.root.com